CVE-2020-18701

Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not…

published August 16, 2021

CVSS
—
EPSS
2%
Percentile
83.0
In the wild
Unconfirmed
What it is

⚠️ A user leaves the party, but their access badge still works! The Lin-CMS-Flask v0.1.1 vulnerability allows attackers to replay authentication tokens after logout, letting them sneak back in. 🕵️‍♂️ Think of it like a restaurant where a diner finishes their meal but doesn’t hand back their reservation card. They could waltz right back in and claim another table, all because the staff didn’t notice the card was still valid! If exploited, an attacker could gain access to sensitive information or even escalate their privileges, like crashing an exclusive after-party with a forgotten invite. This oversight makes it possible for unauthorized users to do some serious mischief, potentially leading to data breaches or unauthorized actions.

Put simply

Think of it like a restaurant where a diner finishes their meal but doesn’t hand back their reservation card. They could waltz right back in and claim another table, all because the staff didn’t notice the card was still valid! This flaw stems from Lin-CMS-Flask not invalidating a user’s authentication token upon logout. As a result, attackers can capture and reuse these tokens to impersonate legitimate users, gaining access to restricted areas of the application.

What to do

If exploited, an attacker could gain access to sensitive information or even escalate their privileges, like crashing an exclusive after-party with a forgotten invite. This oversight makes it possible for unauthorized users to do some serious mischief, potentially leading to data breaches or unauthorized actions. To fix this issue, update Lin-CMS-Flask to the latest patched version to ensure tokens are invalidated correctly upon logout. Also, double-check your authentication mechanisms to prevent replay attacks in the future. 🛡️ You’ve got this! By taking these steps, you’ll boost your security and keep the party exclusive! 🎉

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02277 · 83.0th percentile
Published
2021-08-16T17:55Z
EPSS history
Timeline
  • 16 AUG 17:55Z
    Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not…
    cvelistv5